Cannery-hoist.



PATENTED DEC. 15, 1903.

J. G. WEST. GANNERY H0131. APPLIGATION FILED JULY 16, 1902.

N0 MODEL Wifiuss UNITED STATES Patented December 15, 1903.

PATENT OFFICE.

CANNERY-HOIST.-

SPECIFICATION forming part of Letters Patent No. 746,767, dated December 1903- Application filed JulylB, 1902. Serial No. 115N471 (No model.)

To all whom it may concern:

Be it known that I, JOHN 0. WEST, of the town of Simcoe, in the county of Norfolk,

Province of Ontario, Canada, have invented certain new and useful Improvements in Cannery-Hoists, of which the following is a specification.

The object of my invention is to devise a traveling cannery-hoist which is simple and effective in operation and which may be controlled from any point in the row of steamboxes over which it is arranged to operate; and it consists, essentially, of a hoist frame or traveler adapted to run on an overhead track or rail, means for causing the traveler to traverse the track, an independent hoist rope carrying a hook-block and supported by p the traveler, a stationary steam-cylinder for operating the hoist-rope, and means for controlling the traversing and hoisting mechanism from any part of the length of the track, substantially as hereinafter more specifically described and then definitely claimed.

Figure l is a side elevation of my improved hoist. Fig. 2 is a similar view of a modification of the same. Figs. 3 and 4 are plan views showing the arrangement of the tackleblocks for the hoisting and traveling movements. Fig. 5 is a plan view of the tractionrope drum and its connections shown in Fig.1.

In the drawings like letters of reference indicate corresponding parts in the difierent figures.

In Fig. 1, A is a longitudinal track supported by hangers afrom the ceiling. On this track the hoist frame or traveler B is adapted to run by means of the grooved wheels b. Power is imparted to the traveler to move it by means of the traction-rope O. I wish it to be understood that the term rope is to be taken to mean either a wire rope, chain, or rope of ordinary material. The ends of this traction-rope are connected to rollers D D, each provided with ratchet-teeth engaged by the pawlsc c. From the roller D the traction-rope passes around the sheave. E, suitably journaled at the far end of the track A, thence to the drum F, around which it will be wound a suflicient number of times to give it a frictional grip, and thence back to the traveler, where the other end is made fast to the roller D. It is evident that by retating these rollers the traction-rope may be tightened as desired. It will be seen that by rotating the drum F the traveler will be moved along the track, the direction corresponding with the direction of the rotation of the drum. The drum F is fast on the shaft (1, one end of which is journaled on the track and the other in the disk of the eccentric H,

the strap of which is suitably secured to a frame e,which is back of and parallel with the track A. Extending down from the eccentric disk is the lever I, so that by rocking this lever the shaft cl may be moved from side to side, the bearing on the track A being left sufficiently loose to permit ofthis slight motion. Connected rigidly with the drum F is a friction disk G, and on each side of this frictiondisk are located the friction-disks J and K,

being secured to shafts journaled on the track A and frame c. On these shafts are secured driving-pulleys, as shown. When the machine is in operation, power will be conveyed to these pulleys by any suitable means and from any suitable source to cause the friction-disks J and K to rotate in the direction indicated by arrows. It is now evident that by moving the lever I the friction-disk G may be brought into contact with either of the friction-disks J and. K, and the drum thus caused to rotate in either direction, as desired, putting the traversing movements of the traveler B entirely under the control of the operator. As it is desirable that this traversing motion may be controlled from any point of the track, I secure an endless cord L to the lever I, the cord being carried around suitable guide-pulleys at opposite ends of the tracks. This cord may be thus caused to move the lever I in either direction. The hoisting movement is obtained by means of the hoist-rope M. One end of this rope is fast to the roller N, journaled at one end of the track and provided with ratchet teethrengaged by the pawl f. By means of this ratchetroller the hoist-rope may be lengthened or shortened, as desired. From this roller the hoist-rope passes over the sheaves O, journaled on the traveler B. On the bight of the hoist-rope between these sheaves is hung the hook-block P, adapted for connection with the crates to be hoisted. From the traveler the hoist-rope passes to the other end of the fixed block R and a double movable block S.

The end of the hoist-rope, it will be seen, is secured to the frame of the fixed block, which is suitably hung from the track. The movable block has a hanger g secured to its frame, which hanger is provided with a grooved wheel to enable it to run on the track A. The frame of the movable block S is secured to the end of the piston-rod T, secured to the piston U of the steam-cylinder V.

A is a slide-valve of ordinary construction provided with the usual inlet and exhaust pipes and connections with the opposite ends ofthecylinder. Thisslide-valveiscontrolled by means of the lever B, pivoted on some stationary part. This leveris connected with an endless cord similarly arranged to the endless cord L, so that the lever may be operated from any part of the track.

, vice.

From the construction described it. follows that by operating the slide-valve the piston of the steam-cylinder may be extended or retracted, and the hoist-rope thus lengthened or shortened to raise or lower the hook-block P. It is also evident that this operation may be performed no matter at what part of the track the traveler may be.

It must be understood that I do not wish to confine myself to the exact construction of the hoisting-tackle shown, as other combinations of fixed and movable blocks might be employed. Also other means might be employed for adjusting the ropes O and M than theratchet-rollers shown.

In Fig. 2 I show a modification of my de- In this figure the hoisting apparatus is identical with that shown in Fig. l; but instead of the drum F and its connections for moving the traveler I employ a stationary steam-cylinder E. This steam-cylinder is provided with a piston F, having two pistonrods G H, one extending through each end of the cylinder. To the ends of these pistons are secured the frames of the movable multiple blocks I J. These blocks are provided with hangers h, having grooved rollers journaled thereon to engage a short track K, suitably supported from the ceiling. In front of the movable block I is the multiple fixed block L, and in front of the movable block J is the multiple fixed block M. The traction-rope O has one end fast to the ratchetroller '6, which is journaled on a fixed part adjacent to the block L and is engaged by the pawl 7'. From this roller the rope passes around the sheaves of the multiple blocks L L, thence to the traveler B, to which it is suitably secured, around the sheave E, journaled at the far end of the track, thence to the fixed multiple block M, around the sheave of this block and the movable block J, and finally to the ratchet-roller 7c, journaled on the fixed part and engaged by the pawl L. The exact number of sheaves in the multiple blocks is of course immaterial, depending in part on the amount of motion required for the traveler. Aslide-valve N, provided with suitable connections similar to the slide-valve A, is provided for the cylinder E. This slide-valve is operated by means of the lever O, to which the endless cord L, controlling the motion of the traveler, may be connected. By operating the slide-valve the movable multiple blocks 1 J are operated to haul in on one end of the traction-rope and pay out on the other to give the traveler the desired motion.

I find that my hoist is very convenient and eflicient when in use. It is not liable to get out of order or break down and can be operated from a portion of the track near any desired kettle, so that the operator may easily bring the traveler over the desired kettle,

lower the hook-block, pick up a crate of cans, and run it along to the end of the track adin combination with a hoist-rope secured at one end to a drum journaled on a stationary part; a ratchet-wheel formed on or secured to the drum; a pawl for the ratchet-wheel, pivoted on the stationary part; two sheaves journaled on the traveler and carrying the said hoist-rope; a hook-block hung on thehoist-rope between the said sheaves; a stationary steam-cylinder to the piston-rod of which the other end of the hoist-rope isconnected; and a valve controlling the inlet and exit of steam to and from the opposite ends of the cylinder, substantially as described.

2. In a cannery-hoist, a track; a traveler adapted to move on the said track; a rope connected with the traveler; sheaves at the ends of the track round which the rope passes, the ends of the rope being connected to parts having an unvarying relation to one another; means for adjusting the point of attachment of one of the ends; and means for operating the rope to move the traveler in either direction, substantially as described.

3. In a cannery-hoist, a track, a traveler adapted to move on the said track; a rope connected with the traveler; sheaves at the ends of the track round which the rope passes, the ends of the rope being connected to parts having an unvarying relation to one another; means for adjusting the point of attachment of both of the ends; and means for'operating the rope to move the traveler in either direction substantially as described.

4:. In a cannery-hoist, a track; a traveler adapted to move on the said track; a rope connected with the traveler; sheaves at the ends of the track round which the rope passes; drums jonrnaled on parts having an unvarying relation to one another, and having the ends of the rope secured thereto; ratchetwheels formed on or secured to the drums; pivoted pawls for the ratchet-wheels and means for operating the rope to move the traveler in either direction; substantially as described.

5. 'In a cannery-hoist, a track; a traveler adapted to move on the said track; and stationary means for moving the said traveler, in combination with a hoist-rope fast at one end to a stationary part; two sheaves journaled on the traveler and carrying the said hoist-rope; a hook-block hung on the hoistrope between the said sheaves; a stationary steam-cylinder, to the piston of which is connected a block; a fixed block secured to a stationary part, the hoist-rope being suitably passed round the sheaves of the said blocks and its end secured to a stationary part; and a valve controlling the inlet and exit of steam to and from the opposite ends of the cylinder; a lever fulcrnmed on a stationary part and adapted to operate the said valve; and means extending along adjacent to the track for operating the said lever; substantially as described.

6. In a cannery-hoist, a track; a traveler adapted to move on the said track ;'and stationary means for movingthe said traveler,

in combination with a hoist-rope adjnstably secured at one end to a stationary part; two sheaves journaled on the traveler and carry-. ing the said hoist-rope; a hook-block hung on the hoist-rope between the said sheaves; a stationary steam-cylinder, to the piston of which is connected a block; a fixed block secured to a stationary part, the hoist-rope being suitably passed round the sheaves of the said blocks and its end secured to a stationary part; a valve controlling the inlet and exit of steam to and from the opposite ends of the cylinder; a lever fulcrnmed on a stationary part and adapted to operate the said valve and means extending along adjacent to the track for operating the said lever; substantially as described. Simcoe, J nly 5, 1902.

' JOHN 0. WEST.

In presence of-- W. E. TISDALE,

A. T. BowLBY. 

